Echo cancellation

PulseAudio ships with an echo cancellation module. You can use NoiseTorch in conjunction with echo cancellation.

First, set the input and output devices to their base versions. Then, make sure the echo cancel module is unloaded (an error here isn't an issue):

pactl unload-module module-echo-cancel

Load the echo cancel module:

pactl load-module module-echo-cancel use_master_format=1 aec_method=webrtc aec_args="analog_gain_control=0\ digital_gain_control=1\ noise_suppression=1" source_name=echoCancel_source sink_name=echoCancel_sink

Set your output device to the echo cancelled sink:

pacmd set-default-sink echoCancel_sink

Stop any existing Noisetorch instance, via the UI or command-line:

noisetorch -u

Start NoiseTorch with the echo cancelled source, via the UI or command-line:

noisetorch -i -s "echoCancel_source"